Dismountable poultry processing knife and a mounting frame

ABSTRACT

A dismountable poultry processing knife and mounting frame. The mounting frame provided with a quick release mechanism for quickly mounting or dismounting of a poultry processing knife while avoiding screw connections. The poultry processing knife provided with quick release features which are arranged to cooperate with the quick release mechanism of the mounting frame.

The invention relates to a mounting frame for a dismountable poultry processing knife. The invention also relates to the dismountable poultry processing knife.

In poultry processing frequent use is made of poultry processing knives. The known poultry processing knives are used for simply cutting poultry parts longitudinally or transversely, but also for boning of particular parts of the poultry.

As an example EP 0 201 980 discloses a boning apparatus which is provided with boning blades having facing cutting edges that are adjusted to the bones to be processed. The boning blades are releasably connected to blade carriers and are able to move rectilinearly towards and away from each other.

A problem with known poultry processing equipment in which poultry processing knives are applied is that it is laborious to change the poultry processing knives for maintenance or other purposes such as cleaning. It is therefore an object of the invention to make removal or placement of the poultry processing knives less laborious and less cumbersome.

In order to achieve the object of the invention a mounting frame and a dismountable poultry processing knife, as well as a processing line for processing poultry are proposed with the features of one or more of the appended claims.

In a first aspect of the invention wherein the mounting frame is provided with a quick release mechanism for quickly mounting or dismounting of the poultry processing knife, and wherein the quick release mechanism is designed for cooperation with quick release features of the poultry processing knife, and said quick release mechanism comprises a clamping portion for releasably clamping a rim of the processing knife, it is according to the invention proposed that the clamping portion comprises at least one arresting pin with a clamping head, and that the at least one arresting pin is longitudinally moveable with respect to a body of the mounting frame so as to move the clamping head between a position in which it clampingly engages the rim of the poultry processing knife, and another position in which it is disengaged or loose from the rim of the poultry processing knife whilst remaining mounted or attached to the mounting frame.

Correspondingly the invention relates to a dismountable poultry processing knife for mounting on a mounting frame, wherein the poultry processing knife is provided with quick release features which are arranged to cooperate with a quick release mechanism of the mounting frame, wherein according to the invention the quick release features of the poultry processing knife comprises at least one receptacle for the at least one arresting pin of the mounting frame, which at least one receptacle is provided on a rim of the poultry processing knife, which rim is arranged to be clamped by the releasable clamping portion of the mounting frame.

Preferably the at least one receptacle of the dismountable poultry processing knife is equipped to snugly receive the at least one arresting pin therein that forms part of the quick release mechanism of the mounting frame.

With reference to the mounting frame the invention can be embodied in different ways.

In one embodiment the pin is provided with external screw thread and arranged to cooperate with a nut so as to clampingly engage the rim of the poultry processing knife with the clamping head of the pin.

In another embodiment the pin is provided with a longitudinal through hole with internal screw thread and arranged to cooperate with a bolt so as to clampingly engage the rim of the poultry processing knife with the clamping head of the pin.

The above mentioned embodiments are well suited to make quick mounting and dismounting of the poultry processing knife possible, in particular since the pin may simply remain attached or connected to the mounting frame during placement or replacement of the poultry processing knife.

Desirably the pin is provided with external flat portions arranged to cooperate with mating surfaces forming part of the mounting frame so as to prevent rotation of the pin.

It is also preferable that the body of the mounting frame is equipped with at least one protrusion which is arranged to guide the processing knife during its mounting on or dismounting from the body of the mounting frame and/or to secure the position of the knife with respect to the mounting frame.

In yet another embodiment the clamping portion of the mounting frame comprises at least two arresting pins at a preselected distance from each other, wherein each of the arresting pins has a clamping head for engaging the rim of the poultry processing knife.

When applying at least two arresting pins, it is preferable that the at least two arresting pins are jointly movable towards and away from the body of the mounting frame so as to make mounting or dismounting easy and to ensure a correct positioning of the poultry processing knife during clamping. This can be done with springs or clips being arranged to cooperate with the two arresting pins. Correspondingly the dismountable poultry processing knife of the invention is preferably provided with as much receptacles as there are arresting pins on the mounting frame, wherein each arresting pin is equipped to snugly receive its corresponding arresting pin that forms part of the quick release mechanism of the mounting frame.

In a suitable embodiment of the mounting frame, the at least two arresting pins are connected with a rod which extends generally parallel to the body of the mounting frame so as to enable that movement of the rod in a direction perpendicular to the mounting frame causes movement of the at least two arresting pins.

Preferably the quick release mechanism of the mounting frame comprises a lever which engages the rod connecting the at least two arresting pins, which lever is movable for moving the rod vis-à-vis the body of the frame. The use of such a lever further promotes the ease of mounting and dismounting a poultry processing knife on or from the mounting frame.

One thing and another is then preferably arranged such that the lever is movable between a first position wherein the quick release mechanism is unlocked and a second position wherein the quick release mechanism is locked.

It is further preferable that the lever comprises an indented portion which is arranged to stably receive the rod connecting the at least two arresting pins, when the lever is in the second position wherein the quick release mechanism is locked. This avoids that the lever may unintentionally move to the first position wherein the quick release mechanism is unlocked, and that consequently the poultry processing knife may get released from the mounting frame.

A further desirable feature is that the at least one of the two arresting pins is provided with a slit in a vicinity of the respective clamping heads of the arresting pins, which slit of each arresting pin is dimensioned to receive and/or enable passage of the rim of the processing knife.

It is further preferable that the body of the mounting frame is equipped with at least one protrusion which is arranged to guide the poultry processing knife during its mounting on or dismounting from the body of the mounting frame and/or to secure the proper position of the poultry processing knife with respect to the mounting frame. Correspondingly it is preferred that the rim of the poultry processing knife is provided with at least one guiding slit which is tailored to the at least one protrusion provided on the body of the mounting frame.

The skilled person will understand that the mounting frame and the dismountable poultry processing knife of the invention are usable in a diversity of poultry processing applications. The invention is for instance usable in a boning operation, wherein it may be desirable that the knife has a curved cutting edge pointing away from the rim of the poultry processing knife which is designed to cooperate with the mounting frame.

The invention is desirably applied in a continuous operation on a series of poultry carcasses executed in a poultry processing line, which is then accordingly equipped with a mounting frame for a dismountable poultry processing knife according to the invention. Accordingly the dismountable poultry processing knife is then mounted on the mounting frame.

The accompanying drawing, which is incorporated into and forms a part of the specification, illustrates one or more embodiments of the present invention and, together with the description, serves to explain the principles of the invention. The drawing is only for the purpose of illustrating one or more embodiments of the invention and is not to be construed as limiting the invention.

In the drawing:

FIG. 1 shows in an isometric view a first embodiment of a mounting frame according to the invention in an unlocked position;

FIG. 2 shows in an isometric view the first embodiment the mounting frame according to FIG. 1 in a locked position;

FIGS. 3A and 3B shows in exploded view the first embodiment of the mounting frame according to the invention from different sides;

FIG. 4 shows in an isometric view a second embodiment of a mounting frame according to the invention in an unlocked position;

FIG. 5 shows in an isometric view the second embodiment the mounting frame according to FIG. 4 in a locked position;

FIG. 6 provides an isometric view of a mounting frame according to the invention together with a poultry processing knife of the invention in an intermediate stage of mounting;

FIG. 7 shows the mounting frame and poultry processing knife of FIG. 6 from a different angle; and

FIG. 8 shows one of the arresting pins in detail.

Whenever in the figures the same reference numerals are applied, these numerals refer to the same parts.

FIG. 1 and FIG. 2 show for clarity without the poultry processing knife 30 of the invention (see FIGS. 6 and 7 ), only the mounting frame 10 of the invention according to one embodiment.

Likewise FIG. 4 and FIG. 5 show for clarity without the poultry processing knife 30 of the invention, the mounting frame 20 of the invention according to another embodiment.

To provide a full disclosure of the construction of the mounting frame of the invention FIGS. 3A and 3B show an embodiment of the mounting frame 10 of the invention in an exploded view from different sides. The construction of the embodiment of the mounting frame 20 as depicted in FIGS. 4 and 5 is with the exception of some features to be discussed hereinafter largely the same. An exploded view of the embodiment of the mounting frame 20 of FIGS. 4 and 5 is therefore not provided.

Turning now to a discussion of the embodiments of the mounting frame 10, 20 shown in FIGS. 1-5 , for brevity the following elucidation continuously refers to both embodiments depicted at the same time, and with further reference to FIGS. 6-8 where this is helpful for a proper understanding of the invention.

A common denominator of the mounting frame 10, 20 of the invention is that this mounting frame 10, 20 is provided with a quick release mechanism for quickly mounting or dismounting of the processing knife 30 while avoiding screw connections. FIG. 6 and FIG. 7 show the dismountable poultry processing knife 30 of the invention in an intermediate stage of its mounting on an embodiment of the mounting frame 10, 20. In these FIGS. 6 and 7 also the quick release features are visible which are arranged to cooperate with the quick release mechanism of the mounting frame 10. These features will be appropriately discussed hereinafter. According to the invention the quick release mechanism of the mounting frame 10, 20 is designed for cooperation with the quick release features of the processing knife 30.

The quick release mechanism of the mounting frame 10, 20 comprises a clamping portion for releasably clamping a rim 31 of the poultry processing knife 30—see FIGS. 6 and 7 .

Preferably the clamping portion of the mounting frame comprises at least two arresting pins 11, 12 at a preselected distance from each other, wherein each of the arresting pins 11, 12 has a clamping head 13, 14 which is best shown in FIGS. 3A and 3B, respectively. The arresting pins 11, 12 are longitudinally moveable towards and away from a body 15, 25 of the mounting frame 10, 20 so as to move the clamping head 13, 14 between a position in which it can engage the rim 31 of the poultry processing knife 30 and another position in which it is disengaged from the rim 31 of the poultry processing knife 30. FIG. 6 and FIG. 7 show a situation wherein one of the clamping heads, i.e. clamping head 13 engages the rim 31 of the poultry processing knife 30.

Preferably the at least two arresting pins 11, 12 are jointly or simultaneously movable towards and away from the body 15, 25 of the mounting frame 10, 20 so as to make mounting or dismounting easy and to ensure a correct positioning of the poultry processing knife 30 during its clamping. Correspondingly the dismountable poultry processing knife 30 of the invention is preferably provided with receptacles 32, 33 that are equipped to receive the arresting pins 11, 12 that form part of the quick release mechanism of the mounting frame 10, 20. FIG. 6 and FIG. 7 show that the receptacles 32, 33 are provided on a rim 31 of the poultry processing knife 30, which rim 31 is arranged to be clamped by the releasable clamping portion of the mounting frame 10, 20.

In a suitable embodiment of the mounting frame 10, 20, the at least two arresting pins 11, 12 are connected with a rod 16 which extends generally parallel to the body 15, 25 of the mounting frame 10, 20 so as to enable that movement of the rod 16 in a direction generally perpendicular to the body 15, 25 of the mounting frame 10, 20 causes movement of the at least two arresting pins 11, 12. This movement of the rod 16 can be arranged in several ways.

Preferably the quick release mechanism of the mounting frame 10, 20 comprises a lever 17, 27 which engages the rod 16 connecting the at least two arresting pins 11, 12. To that end the lever 17, 27 is movable for moving the rod 16 vis-à-vis the body 15, 25 of the frame 10, 20. The use of such a lever 17, 27 further promotes the ease of mounting and dismounting a poultry processing knife 30 on or from the mounting frame 10, 20.

One thing and another is then preferably arranged such that the lever 17, 27 is movable between a first position wherein the quick release mechanism is unlocked and a second position wherein the quick release mechanism is locked. FIG. 1 shows the unlocked position of the quick release mechanism according to this embodiment of the mounting frame 10, whereas FIG. 4 shows the unlocked position of the quick release mechanism according to the embodiment of the mounting frame 20 of FIG. 4 . Conversely FIG. 2 shows the locked position of the quick release mechanism according to the embodiment of the mounting frame 10 of FIG. 1 , whereas FIG. 5 shows the locked position of the quick release mechanism according to the embodiment of the mounting frame 20 of FIG. 4 .

It is further preferable that the lever 17, 27 comprises an indented portion. This indented portion is best shown in the embodiment of the mounting frame 10 of FIG. 1 , wherein the indented portion is indicated with reference 18. This indented portion 18 is arranged to stably receive the rod 16 connecting the at least two arresting pins 11, 12, when the lever 16 is in the second position wherein the quick release mechanism is locked. This avoids that the lever 16 may unintentionally move to the first position wherein the quick release mechanism is unlocked, and that consequently the poultry processing knife 30 may get released from the mounting frame 10, 20.

A further desirable feature is that at least one of the two arresting pins 11, 12 is provided with a slit in a vicinity of the respective clamping heads 13, 14 of the arresting pins 11, 12, which slit of each arresting pin 11, 12 is dimensioned to receive and/or enable passage of the rim 31 of the processing knife 30. The slit 12′ and its location is best shown in FIG. 8 exhibiting a single arresting pin 12.

It is further preferable that the body 15, 25 of the mounting frame 10, 20 is equipped with a protrusion 19 which is best shown in FIGS. 6 and 7 . This protrusion 19 is arranged to guide the processing knife 30 during its mounting on or dismounting from the body 15, 25 of the mounting frame 10, 20. Correspondingly it is preferred that the rim 31 of the poultry processing knife 30 is provided with a guiding slit 34 which is tailored to the protrusion 19 provided on the body 15, 25 of the mounting frame 10, 20 to guide the processing knife 30 during its mounting on or dismounting from the body 15, 25 of the mounting frame 10, 20.

The mounting frame 10, 20 and the dismountable poultry processing knife 30 of the invention are usable in a diversity of poultry processing applications, such as in a boning operation, wherein it is desirable that the knife 30 has a curved cutting edge 35 pointing away from the rim 31 of the poultry processing knife 30 which is designed to cooperate with the mounting frame 10, 20. This is depicted in FIG. 6 and FIG. 7 .

Further embodiments of a mounting frame 40 according to the invention are depicted in FIGS. 9 and 10 , and in FIGS. 11 and 12 .

In these embodiments the clamping portion comprises a single arresting pin 41, 46 with a clamping head 41′, 46′. The arresting pin 41, 46 is longitudinally moveable with respect to a body 40′ of the mounting frame 40 so as to move the clamping head 41′, 46′ between a position in which it clampingly engages the rim 31 of the poultry processing knife 30 (as shown in FIGS. 10 and 12 ) and another position in which it is disengaged or loose from the rim 31 of the poultry processing knife 30. For reasons of clarity of the following explanation pertaining to the construction of the pin, FIGS. 9 and 11 show —contrary to practicing of the invention-that the pin 41, 46 is entirely loose from the mounting frame 40. However, while practicing the invention the pin 41, 46 remains mounted or attached to the mounting frame 40 when removing the poultry processing knife 30 from the mounting frame 40, and when mounting the poultry processing knife 30 to the mounting frame 40.

FIGS. 9 and 10 show an embodiment wherein the pin 41 is provided with external screw thread 43 and arranged to cooperate with a nut 42 so as to clampingly engage the rim 31 of the poultry processing knife 30 with the clamping head 41′ of the pin 41.

Conversely FIGS. 11 and 12 show another embodiment wherein the pin 46 is provided with a longitudinal through hole with internal screw thread 47 and arranged to cooperate with a bolt 48 so as to clampingly engage the rim 31 of the poultry processing knife 30 with the clamping head 46′ of the pin 46.

In the embodiments of FIGS. 9-12 , the pin 41, 46 is provided with external flat portions 44 arranged to cooperate with mating surfaces 45 forming part of the mounting frame 40 so as to prevent rotation of the pin 41, 46.

It is further shown in FIGS. 9-12 that the body 40′ of the mounting frame 40 is equipped with at least one protrusion 49 which is arranged to secure the position of the knife 30 with respect to the mounting frame 40. This at least one protrusion 49 cooperates with at least one slit 50 which is tailored to the protrusion or protrusions 49 provided on the body 40′ of the mounting frame 40, primarily to secure the position of the knife 30 with respect to the mounting frame 40.

The invention is desirably applied in a processing line providing a continuous operation on a series of poultry carcasses, which is then accordingly equipped with a mounting frame 10, 20, 40 for a dismountable poultry processing knife 30 according to the invention. Accordingly the dismountable poultry processing knife 30 is then mounted on the mounting frame 10, 20, 40.

Embodiments of the present invention can include every combination of features that are disclosed herein independently from each other. Although the invention has been discussed in the foregoing with reference to exemplary embodiments of the invention, the invention is not restricted to these particular embodiments which can be varied in many ways without departing from the invention. The discussed exemplary embodiments shall therefore not be used to construe the appended claims strictly in accordance therewith. On the contrary the embodiments are merely intended to explain the wording of the appended claims without intent to limit the claims to these exemplary embodiments. The scope of protection of the invention shall therefore be construed in accordance with the appended claims only, wherein a possible ambiguity in the wording of the claims shall be resolved using this exemplary embodiment.

Variations and modifications of the present invention will be obvious to those skilled in the art and it is intended to cover in the appended claims all such modifications and equivalents. The entire disclosures of all references, applications, patents, and publications cited above are hereby incorporated by reference. Unless specifically stated as being “essential” above, none of the various components or the interrelationship thereof are essential to the operation of the invention. Rather, desirable results can be achieved by substituting various components and/or reconfiguration of their relationships with one another. 

1-18. (canceled)
 19. A mounting frame for a dismountable poultry processing knife, the processing knife having a rim and quick release features, the mounting frame comprising: a body; and a quick release mechanism for quickly mounting or dismounting of the poultry processing knife, the quick release mechanism in cooperation with the quick release features of the poultry processing knife, the quick release mechanism including a clamping portion for releasably clamping the rim of the processing knife, the clamping portion comprising at least one arresting pin with a clamping head, the at least one arresting pin longitudinally moveable with respect to the body of the mounting frame so as to move the clamping head between a position in which it clampingly engages the rim of the poultry processing knife and another position in which it is disengaged or loose from the rim of the poultry processing knife while remaining mounted or attached to the mounting frame.
 20. The mounting frame of claim 19, wherein the pin is provided with an external screw thread and is arranged to cooperate with a nut so as to clampingly engage the rim of the poultry processing knife with the clamping head of the pin.
 21. The mounting frame of claim 19, wherein the pin is provided with a longitudinal through-hole with internal screw thread and arranged to cooperate with a bolt so as to clampingly engage the rim of the poultry processing knife with the clamping head of the pin.
 22. The mounting frame of any one of claim 19, wherein the mounting frame includes mating surfaces, and wherein the pin is provided with external flat portions arranged to cooperate with the mating surfaces of the mounting frame so as to prevent rotation of the pin.
 23. The mounting frame of claim 19, wherein the body of the mounting frame is equipped with at least one protrusion that is arranged to i) guide the processing knife during its mounting on or dismounting from the body of the mounting frame, ii) to secure the position of the poultry processing knife with respect to the mounting frame, or iii) both.
 24. The mounting frame of claim 19, wherein the clamping portion includes at least two arresting pins at a preselected distance from each other, wherein each of the arresting pins has a clamping head for engaging the rim of the processing knife.
 25. The mounting frame of claim 24, wherein the at least two arresting pins are jointly movable towards and away from the body of the mounting frame.
 26. The mounting frame of claim 24, wherein the at least two arresting pins are connected with a rod that extends generally parallel to the body of the mounting frame so as to enable that movement of the rod in a direction transverse to the body of the mounting frame causes movement of the at least two arresting pins.
 27. The mounting frame of claim 26, wherein the quick release mechanism comprises a lever that engages the rod connecting the at least two arresting pins, wherein the lever is movable for moving the rod relative to the body of the mounting frame in a direction transverse to the body of the mounting frame.
 28. The mounting frame of claim 27, wherein the lever is movable between a first position wherein the quick release mechanism is unlocked and a second position wherein the quick release mechanism is locked.
 29. The mounting frame of claim 27, wherein the lever comprises an indented portion that is arranged to stably receive the rod connecting the at least two arresting pins when the lever is in the second position such that the quick release mechanism is locked.
 30. The mounting frame of claim 27, wherein at least one of the two arresting pins is provided with a slit in a vicinity of the respective clamping head of the arresting pin, which slit is dimensioned to receive, or enable passage of, the rim of the processing knife.
 31. A dismountable poultry processing knife for mounting on a mounting frame according to claim 19, wherein the quick release features of the processing knife are arranged to cooperate with the quick release mechanism of the mounting frame, the quick release features comprising at least one receptacle for the at least one arresting pin of the mounting frame, the at least one receptacle provided on the rim of the poultry processing knife, wherein the rim is arranged to be clamped by the releasable clamping portion of the mounting frame.
 32. The dismountable poultry processing knife of claim 31, wherein the at least one receptacle is equipped to snugly receive the at least one arresting pin therein that forms part of the quick release mechanism of the mounting frame.
 33. The dismountable poultry processing knife of claim 31, wherein the rim of the poultry processing knife is provided with at least one guiding slit which is tailored to a protrusion or protrusions provided on the body of the mounting frame to guide the poultry processing knife during its mounting on or dismounting from the body of the mounting frame or to secure the position of the poultry processing knife with respect to the mounting frame.
 34. The dismountable poultry processing knife of claim 31, wherein the poultry processing knife has a curved cutting edge pointing away from the rim of the poultry processing knife that is designed to cooperate with the mounting frame.
 35. A poultry processing line that is equipped with a mounting frame according to claim 19 for mounting a dismountable poultry processing knife.
 36. A poultry processing line according to claim 19 that is equipped with a dismountable poultry processing knife according to claim 31, the dismountable poultry processing knife mounted on the mounting frame. 